NAICS 423730: Warm Air Heating and Air
This industry comprises establishments primarily engaged in the merchant wholesale distribution of warm air heating and air-conditioning equipment and supplies.

Illustrative Examples:

Air pollution control equipment and supplies merchant wholesalers
Nonportable electric baseboard heaters merchant wholesalers
Air-conditioning equipment (except room units) merchant wholesalers
Warm air central heating equipment merchant wholesalers
Automotive air-conditioners merchant wholesalers
Ductless heating and air-conditioning system equipment merchant wholesalers 

ExioML sector: Wholesale trade and commission trade services, except of motor vehicles and motorcycles (51)
Region: US | Year: 2022
Sector value added: 810352.883944 M EUR | Employment: 3730.44587599 thousand persons
Sector GHG emissions: 6107301971.21 kg CO2 eq | Energy carrier net total: 113230.446126 TJ | Carbon intensity: 0.007536595589671585

Company: Wittichen Supply Company
Wittichen Supply Company is a wholesale distributor of heating, ventilating, air conditioning, and refrigeration parts, equipment, and supplies, which has been serving the industry since 1914, a span of over 100 years.